The pop star announced a residency at Planet Hollywood Resort & Casino on ABC's "Good Morning America" on Tuesday. "Britney: Piece of Me" will debut Dec. 27. The singer announced 16 dates, but she will perform 50 shows each in 2014 and 2015.

Spears was in the Nevada desert for the announcement with more than 1,000 fans. Some dressed like the singer's signature schoolgirl look from her "... Baby One More Time" music video.

The Grammy-winning singer's confirmation about the residency comes months after rumors swirled online. She said in an interview on "GMA" that the show will feature her greatest hits as well as new material.

"I'm definitely ready," she said, adding that she's training five hours each day.

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This magnetic storm is HUGE, and still going. Has reach KP 8 today. Would have stayed later to keep filming, but the clouds moved in. Let's hope it persists into the evening tonight also for more pictures.